I am reading this datasheet to implement that IC for an USB-C PD module to charge a 2-S battery pack, but I have the doubt in the schematic (page 11). There are some capacitors with value NC which I do not understand. I think it could be mean Non-connected, but why would they be present in the schematic if are not connected?
I also have another doubt related to the Zener diodes (ZD1, ZD2, ZD3, ZD4) in the BOM. It says Material name ESD Pipe, description: NC , items: ZD1,ZD2,ZD3,ZD4,D1,D2, in the same way for the capacitors and resistor highlighted in the following images.